Megohmmeter 1000V Handheld Digital Insulation Resistor Tester High Accuracy LCD Backlight Multimeter UT505A BT Item Type: Megohmmeter Model: UT505A BT Material: ABS and PC Power Supply Battery: 6 x AA dry batteries(not included) Short Circuit Current: < 2mA Maximum Display: 5999 Automatic Measuring Range: Yes Bluetooth Function: Yes True Valid Value:Yes Step Voltage: 50%~120% range with 10% step Absorption Ratio (DAR): Ratio of 60/15s to 60/30 insulation resistor Polarization Index (PI): Ratio of 10min to 1min insulation resistor value Timing Measurement: Yes High Voltage Reminder: Yes Automatic Discharge: Yes Analog Bar: Yes Automatic Shutdown: Yes Buzzer: Yes Data Hold: Yes Data Storage: 99 Groups Comparative Measurement Function: Yes LCD Backlight: Yes Low Voltage Display: Yes LED Size: Approx. 78 x 59mm / 3.07 x 2.32in Basic function Range Resolution Accuracy Output voltage 50V/100V/250V/500V/1000V 0%-10% Insulation resistor 50V 0.01MΩ~19.99MΩ 0.01MΩ 3%+5 20 0MΩ~50.0MΩ 0.1MΩ 3%+5 100V 0.01MΩ~19.99MΩ 0.01MΩ 3%+5 20.0MΩ~100.0MΩ 0.1MΩ 3%+5 250V 0.01MΩ~19.99MΩ 0.01MΩ ±(1.5%+5) 20.0MΩ~200.0MΩ 0.1MΩ ±(1.5%+5) 500V 0.01MΩ~19.99MΩ 0.01MΩ ±(1.5%+5) 20.0MΩ~199.9MΩ 0.1MΩ ±(1.5%+5) 200MΩ~500MΩ 1MΩ ±(1.5%+5) 100V 0.01MΩ~19.99MΩ 0.01MΩ ±(1.5%+5) 20.0MΩ~199.9MΩ 0.1MΩ ±(1.5%+5) 200MΩ~2000MΩ 1MΩ ±(1.5%+5) 2.0GΩ~10.0GΩ 0.1GΩ ±(10%+3) 10.0GΩ~20.0GΩ 0.1GΩ ±(20%+3) Low resistor measurement 20.00KΩ 0.01Ω ±(1.5%+3) DC voltage 0.0V-600.0V 0.1V ±(2%+3) Alternating current voltage 0.0V-600.0V 0.1V ±(2%+3) Load current 50V(R=50KΩ) 1mA 0%-10% 100V(R=100KΩ) 1mA 0%-10% 250V(R=250KΩ) 1mA 0%-10% 500V(R=500KΩ) 1mA 0%-10% 1000V(R=1 MΩ) 1mA 0%-10%